Accessed on 11 September 2018, 0521 UTC, Post #685.
Please click link or scroll down to read the current status of Tropical Storm Olivia, which will impact the state of Hawaii late Tuesday evening or early Wednesday morning. Please prepare now for the storm’s arrival.
Here’s the latest estimate from the Central Pacific Hurricane Center in Honolulu, Hawaii:
WTPA35 PHFO 110242 TCPCP5 BULLETIN Tropical Storm Olivia Advisory Number 42 NWS Central Pacific Hurricane Center Honolulu HI EP172018 500 PM HST Mon Sep 10 2018 ...OLIVIA DRAWING CLOSER TO THE MAIN HAWAIIAN ISLANDS WHILE SLOWLY WEAKENING... SUMMARY OF 500 PM HST...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...21.9N 149.7W ABOUT 380 MI...610 KM ENE OF HILO HAWAII ABOUT 530 MI...850 KM E OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...991 MB...29.27 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: A Tropical Storm Warning has been issued for Oahu. A Tropical Storm Watch has been issued for Kauai and Niihau. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Oahu * Maui County...including the islands of Maui, Molokai, Lanai, and Kahoolawe * Hawaii County A Tropical Storm Watch is in effect for... * Kauai County...including the islands of Kauai and Niihau. A Tropical Storm Warning means that tropical storm conditions are expected somewhere in the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible in the watch area within 48 hours. For storm information specific to your area, please monitor products issued by the National Weather Service office in Honolulu Hawaii. DISCUSSION AND OUTLOOK ---------------------- At 500 PM HST (0300 UTC), the center of Tropical Storm Olivia was located near latitude 21.9 North, longitude 149.7 West. Olivia is moving toward the west near 10 mph (17 km/h). A continued west to west-southwest motion is expected for the next few days. On the forecast track, Olivia will be moving over the main Hawaiian Islands late Tuesday night into Wednesday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Gradual weakening is forecast during the next 48 hours, but Olivia is expected to remain a tropical storm as it moves across the islands. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure is 991 mb (29.27 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected over Maui County and the Big Island starting late Tuesday or Tuesday night. Tropical storm conditions are expected over Oahu starting late Tuesday night or Wednesday morning. Tropical storm conditions are possible over Kauai County starting Wednesday afternoon. RAINFALL: Olivia is expected to produce total rainfall accumulations of 10 to 15 inches. Isolated maximum amounts of 20 inches are possible, especially over windward sections of Maui County and the Big Island. This rainfall may produce life-threatening flash flooding. SURF: Large swells generated by Olivia will spread from east to west across the Hawaiian Islands over the next couple of days. This will cause surf to build along exposed east facing shorelines as Olivia approaches. This surf may become damaging across parts of the state. See the High Surf Warning from National Weather Service Honolulu for more information. NEXT ADVISORY ------------- Next intermediate advisory at 800 PM HST. Next complete advisory at 1100 PM HST. $$ Forecaster R Ballard ---------------- Hawaii Island Amateur/Ham Radio notes: The Fifth Annual Hawaiian Island Grid Madness VHF/UHF Simplex Event is set for Sunday, 16 September 2018, from 1300 to 1700 HST. The Aulani Hui Amateur Repeater Club sponsors the fun event "to test your equipment, coverage, and operating skills using simplex FM on 2 meters and 70 cm. For contest details, rules, and logging suggestions, please visit https://gridmadness.blogspot.com. ----------------- For the latest Amateur/Ham Radio news and information, please check the blog sidebars and links. These news feeds are updated daily and weekly. Aloha es 73 de Russell Roberts (KH6JRM) Public Information Coordinator Hawaii County, ARRL Pacific Section